the ideology aside when the country was opened up, and it is now a capitalist haven. communism now in china, they talk at great lengths at these party congresses about marxism, leninism, etc., but it is all about preserving the party's power economically as the country continues to grow, because they threw aside most vestiges of communism a long time ago. in north korea, it is all about preserving the power of the military and the kim dynasty, as you have there. and again, it has nothing to do with what karl marx envisioned as communism way back. someone could do a fascinating book on how communism, when it moved into asia, diverged into something different in vietnam, cambodia, laos, china, north korea, then the communism that appeared in europe and the eastern european countries. that's a fascinating split that occured. >> former "washington post" correspondent keith richburg on 34 years of reporting and insight from around the world, sunday at 8:00 on c-span's "q&a." "washington journal" continues.